.3 tremor hitthecityofchristchurch two years ago. nearly 200 people died, including a number of foreign students. nhk world's takao nakajima shows us how the city is remembering and rebuilding. ♪ >> reporter: this is a park in central christchurch, people have gathered to commemorate two years from the february earthquake. >> as we remember the destructive and terrifying earthquake that struck this city and the surrounding area two years ago today. >> reporter: the quake killed 185 people. nearly two-thirds of them were in this building in the city center. it used to house an english language school. it was damaged far more severely than other structures. investigators blame design flaws. 28 japanese were among the victims. some of the relatives visited the site where the building once stood. kazuo horita lost his 19-year-old daughter. >> translator: i feel more painful this year than last year. we want to know why the building collapsed and who is responsible. this should be clarified for the sake of our dead children. >> crews are still rebuilding central christchurch. the area incl